All of my scabs are gone, but I am still being gentle. I don't have the build up that you speak of. I have a large bottle of baby shampoo that I will continue using until it is used up, which could take 3 more weeks. I pour the shampoo over my head using a 44 oz. cup, and rinse with about 5 cups of water. I don't even towel dry my hair. I let it air dry. I also am still spraying on a saline solution about 5 times a day. I also have hair where the transplant went and now my hair looks pretty much normal with no scabs or redness. I do wear a very loose hat because the shaved area in the back and sides has not grown out yet. I thought I had more gray hair in the back, but it is coming in pretty dark.